He told BBC Radio 5 live: "It was trying to go out hard and see how I could go on. I feel like I am in a good place. It is what it is.

"I'll go back now and chill, watch the Inbetweeners and have some dinner and enjoy tomorrow. I am at the Games, I am 20 years old. You move on."

In the women's 400m individual medley, Miley, who had competed in the 2008 and 2012 Olympics, was in third place during the final freestyle leg but was touched out of bronze by Spain's Mireia Belmonte by 0.15 seconds.

Hungarian Katinka Hosszu set a new world record as she took gold.

"I had nothing left," said Miley. "It is such a mixture of emotions. I was so close to getting it. It is happy and disappointment all coming together."

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Hosszu wins 400m IM gold with world record

Max Litchfield, 21, was fourth in the men's event on his Games debut.

"I was still two seconds behind the guy who was third," he said. "It's not like it was a matter of hundredths of a second.

"It is a bit annoying. But to come fourth in my first Games and to have two personal bests in a day is not too bad."